Maps have long elicited a special fascination -- both as practical tools and as beautiful works of art. But to collectors the map trade can be cutthroat, with quirky and sometimes disreputable characters in search of a finite number of extremely rare objects. This is the story of antiquarian map dealer E. Forbes Smiley, who for years doubled as a map thief until he was finally arrested for slipping maps out of books in the Yale University library.